for further information contact your local stmicroelectronics sales office. june 2012 doc id 023242 rev 2 1/8 8 STEVAL-SPBT2ATV3 usb dongle for the bluetooth? class 2 spbt2532c2.at2 module data brief features based on the spbt2532c2.at2 class 2 module bluetooth? specificat ion compliant v2.1+edr usb interface and power supply supported r eprogrammability via usb interface smd antenna and reset button onboard user interface: at2 command set supporting data communication with android smartphone and apple ios bluetooth? enabled devices rohs compliant description the STEVAL-SPBT2ATV3 demonstration board is a design tool to evalua te the spbt2532c2.at2 module in a quick and simple way. the dongle includes the rf antenna and the usb connector. the usb connector is used to connect the dongle to a pc, to access the bluetooth? module, and to supply the dongle. the STEVAL-SPBT2ATV3 includes downloaded fw, enabling the user to create a bluetooth? link with simple at commands. the at command list is detailed in the user manual um1547. the an3189 application note describes how to get started with the STEVAL-SPBT2ATV3. the spbt2532c2.at2-based dongle is a demonstration tool only, to be used strictly for evaluation purposes. it is not a product in itself. www.st.com
recommended operating conditions STEVAL-SPBT2ATV3 2/8 doc id 023242 rev 2 1 recommended operating conditions 2 i/o connections 2.1 pad description other than the usb plug, some pads are also available. in fact tp1 and tp2 pads make the spbt2532c2.at2 pins av ailable to the user. figure 1. available pads ta bl e 2 lists the meaning of these pads. table 1. recommended operating conditions symbol parameter conditions min. typ max unit v dd board supply voltage -40 c < t < 85 c 4 5 6 v top operating case temperature range -40 +85 c
STEVAL-SPBT2ATV3 i/o connections doc id 023242 rev 2 3/8 2.2 reset switch a reset switch sw1 is present on the dongle. when sw1 is pushed spbt2532c2.at is forced to reset. the following prompt is displayed on the screen: at-ab - command mode at-ab bdaddress xxxxxxxxxxxx table 2. pad connections pads description tp 1 reset - connected in parallel to onboard reset switch 2 spbt2532c2.at2 supply voltage 3 boot pin - used for firmware downloading - used for testing purposes 4 gpio01 - general purpose i/o ? led5 is connected to this pin 5 gpio02 - general purpose i/o ? led4 is connected to this pin 6 gpio03 - general purpose i/o ? led3 is connected to this pin 7 gpio04 - general purpose i/o ? led2 is connected to this pin 8gnd 9gnd 10 usb + (5 v) 11 gnd 12 used for testing purposes 13 used for testing purposes 14 used for testing purposes 15 used for testing purposes 16 used for testing purposes 17 used for testing purposes 18 3.3 v
i/o connections STEVAL-SPBT2ATV3 4/8 doc id 023242 rev 2 figure 2. reset switch
STEVAL-SPBT2ATV3 dongle layout doc id 023242 rev 2 5/8 3 dongle layout figure 3. dongle component layout
dongle schematic STEVAL-SPBT2ATV3 6/8 doc id 023242 rev 2 4 dongle schematic figure 4. dongle electrical drawing ! - v * 1 ' b 5 ) 5 3 "
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STEVAL-SPBT2ATV3 revision history doc id 023242 rev 2 7/8 5 revision history table 3. document revision history date revision changes 11-jun-2012 1 initial release. 25-jun-2012 2 ? title and description modified to improve readability ? added: section 1: recommended operating conditions and section 2: i/o connections
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